The early 1960s RCA 12AU7A tubes in this precisely matched pair have long gray plates, side getters, and clear tops. The orange print on the glass is labeled for Hammond or Conn organs. Both tubes test as new with balanced sections and low noise.

TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.